/*设置cookie*/
function setCookie(cname, cvalue, exdays, path) {
	var d = new Date();
	d.setTime(d.getTime() + (exdays * 24 * 60 * 60 * 1000));
	var expires = "expires=" + d.toUTCString();
	var cookieVal = cname + "=" + cvalue + "; " + expires + ";path=" + path;
	console.log("cookieVAl: ", cookieVal)
	document.cookie = cookieVal;
}
//获取cookie
function getCookie(cname) {
	var name = cname + "=";
	var ca = document.cookie.split(';');
	for (var i = 0; i < ca.length; i++) {
		var c = ca[i];
		while (c.charAt(0) == ' ') c = c.substring(1);
		if (c.indexOf(name) != -1) return c.substring(name.length, c.length);
	}
	return "";
}

function delCookie(c_name) {  
	setCookie(c_name, "", -1)
}